EP 0690366 A1 19960103 - Control interface for customer replaceable fan unit
Title (en)
Control interface for customer replaceable fan unit
Title (de)
Kontrollenschnittstelle für ein von einem Benutzer wechselbares Gebläse
Title (fr)
Unité de commande d'un ventilateur remplaçable par un utilisateur
Publication
Application
Priority
US 26918794 A 19940630
Abstract (en)
The fan monitoring and control system comprises the power mixing circuit having a first and a second input for receipt of a first and a second power rail, respectively, a first pair of power rail enable inputs and a second pair of power rail enable inputs, a first pair of power rail status outputs and a second pair of power rail status outputs, and a power output. A fan unit has a power input coupled to the power output of the power mixing circuit, a speed control input and a speed indicator output. A first control board has a fan speed indicator input coupled to the speed indicator output of the fan unit, and a pair of power rail status inputs coupled to the first pair of power rail status outputs of the power mixing circuit, respectively. A pair of power rail enable outputs are coupled to the first pair of power rail enable inputs of the power mixing circuit, respectively, and a speed control output is coupled to the speed control input of the fan unit. A second control board is also included.
IPC 1-7
IPC 8 full level
G06F 1/20 (2006.01); G05B 9/03 (2006.01); G06F 11/00 (2006.01)
CPC (source: EP US)
G05B 9/03 (2013.01 - EP US)
Citation (search report)
- [Y] "A FAIL-SAFE SCHEME FOR THERMALLY PROTECTING DATA STORAGE LIBRARY", RESEARCH DISCLOSURE, no. 342, 1 October 1992 (1992-10-01), pages 793, XP000326709
- [Y] PATENT ABSTRACTS OF JAPAN vol. 7, no. 180 (P - 215)<1325> 9 August 1983 (1983-08-09)
- [A] PATENT ABSTRACTS OF JAPAN vol. 9, no. 253 (P - 395)<1976> 11 October 1985 (1985-10-11)
- [A] PATENT ABSTRACTS OF JAPAN vol. 15, no. 118 (E - 1048) 22 March 1991 (1991-03-22)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
US 5436827 A 19950725; CA 2149616 A1 19951231; CA 2149616 C 19981215; CN 1118895 A 19960320; EP 0690366 A1 19960103; JP 2642613 B2 19970820; JP H0863262 A 19960308
DOCDB simple family (application)
US 26918794 A 19940630; CA 2149616 A 19950517; CN 95106881 A 19950630; EP 95303397 A 19950522; JP 16171195 A 19950628